Trailing truck.



No. 82%,488. PATENTED MAY 15, 1906. J. F. DE VOY.

TRAILQF: APPLICATION ram 53%. 1905 a SHEETS-SEEP! 1 F fi V the load ontothe said in JAMES F. DE VUY. (ll

PATENT oEFIon.

ail SJVAUKEE, VIHSUONSIN TBAELING TRUCK Specification or Lot-tornPsi-tent.

Patented m 15, race.

Application filed April 17, 1905- Berisl No. 255.912.

To 1! H'Imm it may concern;

liill known that 1. JAMES F. VOY. n citizen f the United States,residing at Miiwaukvv. in the county oi Miiwaukeo and Stateul"Wisconsin. have invented certa n new and useful Improvonwnts in TrailingTrucks; and i do hereby declare the lollowmg to he a full, clear, andexact (lPsfl'lptlOH of the invention, such as wili enabie others skilledin the art to which it appertalns to make and use the same.

M invention relates articularly to locomotive construction, and has forits especial object to provide improved means for mounting the trailingtruck with freedom for lateral movements transversely of thelocomotivefrsmework.

To the above ends theinvention consists of the novel devices andcombinations of de vices hereinafter described, and defined in theclaims. 7

Hitherto in so-called radial true for locomotives the ltriiiling truckhas been mounted to move rally on the arc of a cirole, and in can'fiing7 trailing truck s been permitted its lateral movement only b overcominga sliding frictional resistance tween Harts winch ing truck. 350 in theconstruction referred to a ring device has been employed and so spflisdas to exert a tending to msintsm the $3521 ing trnclrin anintermediatopositio'n, position it properlyvoocupies when on astraighttrack.

of the oad on the trailing truck the friction between the parts whichmust sii over each other is so greatthat the spring evioe is ineflicicntto overcome the same, so that in fact, the flanges of the wheels of thetrailing truck are crowded with great force against track and in whichthe weightof the load on the trailing truckjs caused to exert forcetendmgto maintain the said trailing truck in its Intermediate positionwhen on a out that construction the With nichconstnictioni, howev' r, itso happens that under the weight straight track, but which willnevertheless offer but little friction or resistance to-a latvan!movonwnt of said trailing truck when running on a curvod'track. Myinvention is illustrated in the'acoompsnying drawings, wherein likecharacters ind iu its like parts throughout the several views.licl'orrin to the drawin s, Figure 1 is a plan view s owing a part c anengine-truck the trailin truck of which 'is connected to the main emsthereof in accordance with my invention, some tparts being broken away.Fig. 2 is a vex-tics. section taken approximately on the line as as ofFig. 1, some parts being broken swa Fig. 3 is a transverse verticalsection ta on slapproximately on the iine'z' :p' of Fig. 1; and ig 'tionof the parts shown in Fig. 1, the mainframe and the springs being shownsection longitudinally-extended bars or members of a pendinguide-pedestais2 are rigidly secured thepedestals, which are in linewitheach other transversely of the truck, being, as shown, separately truck,are, as shown; tied together by nutted fbolts 4 and are; hyksp fisieoves5, through w ch sax sons ablz'lps I The journal-boxes B'are rigidly,being, as shown, cast integrally with a channel-like ironic 7 thatisopen at it'efbottom. These journal-hoses 6 are thus connected for commonmovements, and they'are free for limited movements transversely of thetmck between the cooperating guide estals. 2, such movements beinglimited y con rat ing stop-lugs 8 and 9, respectivelg, on a tieplates. 3and on the sides of the ox-connectframe 7.

e axle 10 of the traili truck is pro vided with wheels 11, theretoin'the usual way. 7 Said side is journaled in the inertial-boxes 6, andbear-in -brssses 12 are plates of said. carnal-box.

As shown, t e axle-boxes 6 are provided in their tops with oil-tubes 13,that are seated in the tops of the respective bearin -hrasses 12 andregistorwith oi Oil-boxes 15 are detachably secured between 4 is a fronteleva- The numeral 1 indicates laterally-spaced iocomotive-frame,to'whioh members de-' formed, but rigidly se-' cured to tie-plates 3.,The lovgonends-of thee pedestals 2, which are on the sanic'side as the(See particuls'rlyFigs. 1 and 2.) 7

interposed between said axe and the top A -ducts14insci blesses.

the sides of the journal-boxes below the axle. In the'to plates of thejournal-boxes are concave rol er-seats. l6, referably formed directly insaid 'ourna -boxes. Bearing-rollers 17 rest oose v in the roller-seats16. Upor roller bearings, herein desi mated as roller-bearing caps,"IRareforme integrally with a transverse horizontally-extended tieplate19. These roller-caps 18 are formed with concave roller-seals 20, thatrest upon the respective bearing-roller 17. The socalled concaveroller-seats" '16 and 20 are, as shown, cylindrical; but they may beformed on various lines which will adapt thorn to cooperate with thebearing-rollers to yieldingly maintain the trailing truck in anintermediate or central position transversely of the mainfrarire underthe weight of the load on the truck. The term bearing-rollers is alsoherein used in a broad sense to include rollingbodiesorelements.Neartheirendsthe roller-bearing caps 18 have upwardly-projectingguide-[e s 2], which, as shown, work a 'ainstchaun -shaped chafingplates22, that are rigidly. secured to the inner surfaces of the framemembers 1. In this way said roller-caps areheld against movementstransversely of the main f rame of the enginemr, otherwise stated, areheld against.- emlwise movements with the 'ournal-boxes, but arepermitted touraise an lower, as is necessary under a lateral movement ofthe wheels 11, axle 10, and journal-boxes 6.- 9

The main frame or body of the engine is of course yieldingly'. supportedby a suitable spring-rigging Certain members of this spring-rigging estdirectly upon the rollerbearing caps 18, and, as shown, elliptical sprirrgs 23 are seated upon the said caps. In other instances, however,equalizing bean s or levers,formin part of tires ring-rigging, will beseated on t re said rollcrrearing caps. In the construction illustratedin the drawings links 24 and 25 are suspended f1 om the ends of theelliptical spr ings 23, and the lower ends of the links 24 are pivotedto brackets 26, ri idly secured to the fiarre members i, while thelower-ends of the links 25 are pivoted to the rear ends of equalizin-bearrs '27, which beams are connected into t e lever system of thespring-rigging in a manner not necessary for the purposes of this caseto further consider.

With the trailing truck mounted as above described it is evident thatthe journal-boxes,

the axle, and the wheels of the said trailing truck are free for lateralmovementsthat is, movementstransversely of the body of thelocomotive--and that said movement is resisted bv but very slight frietion, and,furthermorc, that the. weight of the load on the bearingroller and cooperating roller seats exerts a very considerable forcetending to maintain the laterally-movable parts of the trailing truck intheir intermediate or central position and to restore the said parts tosuch mtern'ediate positions when the locomotive runs from a curved trackonto a straight track. The flan es of the wheelsof the trailing truckare not, therefore, forced under great p:essure against the rails. "Thet.ailing t. uck mounted as above described is not, properly speaking, aradial truck, since it ras a strawht-line laterai movement transverselyof the locomotive-body instead of being mounted for movements on the arcof a circle, as in so-called "radial trucks. The trailing truckconstructed and mounted as above described has been incorporated in alarge passenger-loeomotive, which locon'zotive has been put into actualuse and has been run at enormously high speeds with rrost satisfactorvresults. In practice it has also been found that the particular truckdescribed can be eonstruc'tedand applied to a locomotive at a very smallcost. In fact, it has been found that a very great saving over the-costof ap rlying the so-called radial trucks"'r-r av beet eeted bfthe use ofmy improved lateralmotion truck.

. The truck'rqechanism is capable of modifications within the scope ofmy inventiorr .as herein set forth and claimed.

What I claim, and desire to secure by Letters'Patcnt .of'the UnitedStates, is as follows: i

1. In a truck, the combination with a main frame,- havingguide-pedestals at its sides, of a pair of'rigidly-conneeted axle-boxesworking between'seid edest-als, transversely of said mm, a whee-cquipped axle journaled in said boxes, a. pair of rigidly-connectedroller-eaps,- held against movement transversely ofsaid main frame, andbearing-rollers interposed between said {our rial-boxes and saidroller-caps, substantia ly as described.

2. In a truck, the combination with a main frame, having guide-pedestalsat-its sides, of a pair of rigidly-connected axle-boxes working betweensaid pedestals, transversely of said frame, said axle-boxes havingconcave roller-seats on their upper portions, a wheelequipped, axlejournalcd in said box, rigidly- .connected roller-bearing caps heldagainst rrrovemcnt transverselv of said frame, said ca s havingconeaveroller-seats, and bearingro lers interposed between said jour nal-boxesand said ca s, and working in thbHzoneave seats thereo said rollers andseats tending to maintain said axle in an intermediate posi tiontransversely of the tr uek, substantially as described. a

3. In a truck, the combination with a main fr ame havin guide-pedestalsat its sides, of a air of rigid v-connected axle-boxes workin tween saipedestals, transvclselv of sax frame, said boxes having concave ro[er-seats in their top plates, a wheel-equipped axle 5 m era and 883d r0er-ca journaled in said boxes, a. air of rigidly-connectedroller-bearing caps ment transversely of said main frame, and cussconcave roller-seats; bearingased between said juumal-boxesf s andworking in the mm cave seats thereo and 9. spring-rigging supportingsaid main frame, certain members of wheh rest directly upon saidroller-caps, subeld against movgstantiall'y as descnbed In testjmonywhereof I affix my signature in presence of two witnesses.

JAMES F. DE VOY. Witnesses:

Gnoaen DAYTON, HERBERT E. Baowxnnn.

